<template>
  <el-container>
    <el-aside width="200px" style="background-color: rgb(255, 255, 255)">
      <el-input
              placeholder="输入关键字进行过滤"
              v-model="filterText">
      </el-input>
      <el-tree
              v-loading="treeLoading"
              class="filter-tree"
              :data="treeData"
              :props="defaultProps"
              default-expand-all
              :highlight-current=true
              :filter-node-method="filterNode"
              @node-click="handleNodeClick"
              ref="tree">
      </el-tree>
    </el-aside>
    <el-main style="padding-top: 0px">
      <el-card shadow="never" class="aui-card--fill">
        <div class="mod-sys__dict">
          <el-form :inline="true" :model="dataForm" @keyup.enter.native="getDataList()">
            <el-form-item>
              <el-input v-model="dataForm.dictName" :placeholder="$t('dict.dictName')" clearable></el-input>
            </el-form-item>
            <el-form-item v-if="dataForm.pid === '0'">
              <el-input v-model="dataForm.dictType" :placeholder="$t('dict.dictType')" clearable></el-input>
            </el-form-item>
            <el-form-item v-if="dataForm.pid !== '0'">
              <el-input v-model="dataForm.dictValue" :placeholder="$t('dict.dictValue')" clearable></el-input>
            </el-form-item>
            <el-form-item>
              <el-button @click="getDataList(1)">{{ $t('query') }}</el-button>
            </el-form-item>
            <el-form-item>
              <el-button v-if="$hasPermission('sys:dict:save')" type="primary" @click="addOrUpdateHandle()">{{ $t('add') }}</el-button>
            </el-form-item>
            <el-form-item>
              <el-button v-if="$hasPermission('sys:dict:delete')" type="danger" @click="deleteHandle()">{{ $t('deleteBatch') }}</el-button>
            </el-form-item>
          </el-form>
          <el-table
                  v-loading="dataListLoading"
                  :data="dataList"
                  border
                  @selection-change="dataListSelectionChangeHandle"
                  @sort-change="dataListSortChangeHandle"
                  style="width: 100%;">
            <el-table-column type="selection" header-align="center" align="center" width="50"></el-table-column>
            <el-table-column prop="dictName" :label="$t('dict.dictName')" header-align="center" align="center"></el-table-column>
            <el-table-column v-if="dataForm.pid !== '0'" prop="dictValue" label="字典值" header-align="center" align="center"></el-table-column>
            <el-table-column prop="dictType" :label="$t('dict.dictType')" header-align="center" align="center">
              <template slot-scope="scope">
                <span v-if="dataForm.pid !== '0'">{{ scope.row.dictType }}</span>
                <el-button v-else type="text" @click="childHandle(scope.row)">{{ scope.row.dictType }}</el-button>
              </template>
            </el-table-column>
            <el-table-column prop="sort" :label="$t('dict.sort')" sortable="custom" header-align="center" align="center"></el-table-column>
            <el-table-column prop="remark" :label="$t('dict.remark')" header-align="center" align="center"></el-table-column>
            <el-table-column prop="createDate" :label="$t('dict.createDate')" sortable="custom" header-align="center" align="center" width="180"></el-table-column>
            <el-table-column  :label="$t('handle')" fixed="right" header-align="center" align="center" width="200">
              <template slot-scope="scope">
                <el-button v-if="$hasPermission('sys:dict:update')" type="text" size="mini" @click="addOrUpdateHandle(scope.row)">{{ $t('update') }}</el-button>
                <el-button v-if="$hasPermission('sys:dict:delete')" type="text" size="mini" @click="deleteHandle(scope.row.id)">{{ $t('delete') }}</el-button>
              </template>
            </el-table-column>
          </el-table>
          <el-pagination
                  v-if="dataForm.pid === '0'"
                  :current-page="page"
                  :page-sizes="[10, 20, 50, 100]"
                  :page-size="limit"
                  :total="total"
                  layout="total, sizes, prev, pager, next, jumper"
                  @size-change="pageSizeChangeHandle"
                  @current-change="pageCurrentChangeHandle">
          </el-pagination>
          <!-- 弹窗, 新增 / 修改 -->
          <add-or-update v-if="addOrUpdateVisible" ref="addOrUpdate" @refreshDataList="refreshList"></add-or-update>
        </div>
      </el-card>
    </el-main>
  </el-container>
</template>

<script>
import mixinViewModule from '@/mixins/view-module'
import AddOrUpdate from './dict-add-or-update'
import { moduleRoutes } from '@/router'

export default {
  mixins: [mixinViewModule],
  data () {
    return {
      filterText: '',
      treeLoading: false,
      treeData: [],
      defaultProps: {
        children: 'children',
        label: 'dictName'
      },
      mixinViewModuleOptions: {
        activatedIsNeed: false,
        getDataListURL: '/sys/dict/page',
        getDataListIsPage: true,
        deleteURL: '/sys/dict',
        deleteIsBatch: true,
        getTreeDataURL: '/sys/dict/tree/0'
      },
      dataForm: {
        pid: '0',
        dictName: '',
        dictType: '',
        dictValue: ''
      }
    }
  },
  components: {
    AddOrUpdate
  },
  watch: {
    filterText (val) {
      this.$refs.tree.filter(val)
    }
  },
  activated () {
    // 通过路由参数pid, 控制列表请求操作
    this.dataForm.pid = this.$route.params.pid || '0'
    if (this.dataForm.pid !== '0') {
      this.mixinViewModuleOptions.getDataListURL = '/sys/dict/list'
      this.mixinViewModuleOptions.getDataListIsPage = false
      this.dataForm.dictType = this.$route.params.type || ''
    }
    // 默认显示第一节点数据时 注释掉加载所有数据的表格
    // 加载所有表格数据
    this.getDataList()
    this.getTreeDataList()
  },
  methods: {
    refreshList () {
      if (this.dataForm.pid === '0') {
        this.getTreeDataList()
      }
      this.getDataList()
    },
    // 子级
    childHandle (row) {
      // 组装路由名称, 并判断是否已添加, 如是: 则直接跳转
      var routeName = `${this.$route.name}__${row.id}`
      var route = window.SITE_CONFIG['dynamicRoutes'].filter(item => item.name === routeName)[0]
      if (route) {
        return this.$router.push({ name: routeName, params: { 'pid': row.id } })
      }
      // 否则: 添加并全局变量保存, 再跳转
      route = {
        path: routeName,
        component: () => import(`@/views/modules/${this.$route.name.replace(/-/g, '/')}`),
        name: routeName,
        meta: {
          ...window.SITE_CONFIG['contentTabDefault'],
          menuId: this.$route.meta.menuId,
          title: `${this.$route.meta.title} - ${row.dictType}`
        }
      }
      this.$router.addRoutes([
        {
          ...moduleRoutes,
          name: `main-dynamic__${route.name}`,
          children: [route]
        }
      ])
      window.SITE_CONFIG['dynamicRoutes'].push(route)
      this.$router.push({ name: route.name, params: { 'pid': row.id, 'type': row.dictType } })
    },
    // 新增 / 修改
    addOrUpdateHandle (row = {}) {
      this.addOrUpdateVisible = true
      this.$nextTick(() => {
        this.$refs.addOrUpdate.dataForm.id = row.id
        this.$refs.addOrUpdate.dataForm.pid = this.dataForm.pid
        this.$refs.addOrUpdate.dataForm.dictType = row.dictType || this.dataForm.dictType || ''
        this.$refs.addOrUpdate.init()
      })
    },
    handleNodeClick (data) {
      this.dataForm.pid = data.id
      this.mixinViewModuleOptions.getDataListURL = '/sys/dict/list'
      this.mixinViewModuleOptions.getDataListIsPage = false
      this.dataForm.dictType = data.dictType
      this.getDataList()
    },
    // 树节点点击事件
    filterNode (value, data) {
      if (!value) return true
      return data.dictName.indexOf(value) !== -1
    },
    getTreeDataList: function () {
      this.treeLoading = true
      this.$http.get(
        this.mixinViewModuleOptions.getTreeDataURL,
        {
          params: {}
        }
      ).then(({ data: res }) => {
        this.treeLoading = false
        if (res.code !== 0) {
          this.treeData = []
          return false
        }
        this.treeData = res.data
        // 默认显示第一节点的数据
        /* if (this.treeData && this.treeData.length > 0) {
          this.handleNodeClick({ id: res.data[0].id, dictType: res.data[0].dictType })
        } */
      }).catch(() => {
        this.treeLoading = false
      })
    }
  }
}
</script>
